Arbor press



APPLCATION FILED MAR. l, 192|.

1. H. STALEYT ARoR PRESS.

Patented July-4; 1922.

' 4 SHEETS-SHEET 1.

` Jaar-'nel 1. HQSTALEY. ARBoR PRESS.

` APPLICATION FAILED MAR. 1, I92I.

Patented July 4, 1922.

4 SHEETS-SHEET 2 .1..v H.; STALEY.

ARBOR. PRESS.

APPLICATION FLED MAR,1, 1921.

Patented. July 1,v 1922.

4 SHEETS-SHEET 3 HNS: v v t ISES@ .l. H. STALEY.

ARBOR PRESS.

APPLIjCATION FILED MAR. l, 192!- Patented July 4, 1922.

4 SHEETS-SHEET 4.

IIIIIHIIIIIII JOSEPH H. STALEY, OFCOLUMB'US, INDIANA.

ARBOR PRESS.

agentes.

Application filed March 1,

Be it known that l, Josnrn H. STALEY, a :itizen ot' the United States.residing` at Columbus. in the county of Bartholomew and State ofIndiana. have invented new and useful Improvements in Arbor Presses. otwhich the following is a specification.

This invention relates to improveu'ients in arhor presses 'tor placingand loosening hushings in various mechanisms. :tor tightening parts onarbors preparatory to the doingof lathe-work on them` and for varioususes in machine construction and repair wherein a regulated pressure isneeded.

The object of the invention is to provide a machine that can be quicklyset to the particular job in hand and which will then be capable ofexerting a plurality of different pressures to the development of whichthe mechanism may be easily and quickly changed.

I -accomplish the above and other objects which will hereinafter appear,by the mechanism illustrated in the accompanying' drawings in whichlike. characters of reference in dicate like parts and wherein:

Fig. l is a view `in front elevation of my invention, Fig. 2 is a viewin side elevation of the machine shown in Fig. l. Fig. 3 is a detail ona larger scale ot the mechanism at the top ot the machine as shown inFig. i), for determining the ram pressure. Fig. 4 is a horizontalsection ot the mechanism of Fig. 3 through the ram driving shafts. Fig.5 is an edge and Fig. 6 a top plan view of the table plate.

The frame of the press has an expanded base 7, column 8 terminating witha forwardly extended portion at its upper end to support a ram 9 withsu'ilicient clearance in front ot the standard to 'avoid interferencewith the work, and a standard 10 on the hase in front of the column` allot which parts are preferably in one-piece of cast iron of heavy andstrong proportionsas shown. The front of the column has a planed surfacel1 as a bearing for a table l2, with a pair ot vertical slots 13, forthe passage of bolts by which the table is slidingly held against saidplaned surface. The standard is recessed vertically to receive a screw14, upon the upper end of which the table bears,

Specification of'Lette'rs Patent.

Patented July a, i922.

1921. Serial No. 448,877.

and within the standard is a nut l5 through which the screw operates. Abevel gear wheel 16 on the screw meshes with a similar wheel 17 on `asha'f't journaled in the depending guide extension of the table. and onthe outer `end. or", this shaft is the 'hand crank 18. whereby it willbe evident that by turning the crank the table will he raised or loweredaccordingly. The table is slotted in centr. lly from the liront in thepath of the rain to accommodate proiecting` portions ot articles to beoperated on, and to facilitate operations a table-plate 19. is providedwhich has a series ot radial slots ot different widths that may bebrought selectively over the slot in the table to tit the particularwork in hand. The plate 19 has a .pin Q0 which enters a hole in thetable and about which pin thetable is rotated. A ring 2l is clamped tothe top ofthe standard to Afurther hold the position ot such articles asare long enough to reach that -tar and are passed through it. and thebase is recessed at QQ in alinemeut with `the openings above.

The ram 9 is slidingly mounted in a vertical channel in the forwardlyextended portion ot the column 3.. where it is retained by a plate 2Q.and by engagement of stub gear teeth 9"l on the ram with correspondingstub gear teeth 9h cut in a shaitt .23 Aj'our-naled in the vtrame headol the press. Mounted on this shaft is a hand-wheel 24- by which theshaft may he rotated for a minimum pressure, but more generally for the4purpose of raising or lowerin the ram in receiving and discharging thearticle to be pressed or that has been pressed.

Mounted in a fixed manner on the other end of shaft 23 from hand-wheel24, is a ratchet-wheel 25, and further in on the shaft but adjacent theratchet-wheel, a hand lever hub 26 is loosely mounted on the shaft. Thishas a socket in which a lever 26a is retained. An extension 27 from thehub supports a counterweight 28. On the opposite side of shaft 23 tromthe counterweight a shaft 29 is journaled in the hub with a rocking anda longitudinal adjustment. Near its middle the shaft 29 has two suitablyspaced-apart circumferential grooves 3() and 3l and above it in the hubot the lever is a boss 3ft-* having a bore radially of the shaft 29, inwhich is a ball 33, pressed by a spring 34C toward the shaft, and whichenters whichever one of the grooves isV then in register with said bore.A screw-plug` 35 in the outer threaded end of the bore provides meansfor adjusting the compression of spring 34.

Mounted in a fixed manner on the outer portion of shaft 29 is a pawl 36,adapted to- 38. and 'in driving engagement therewith.

Also mounted in a fixed manner on shaft'39, 0n the other side of theframe, is a pinion lll which drivingly engages a spur-gear wheel 42,fixed on the shaft 23. a Y

Mounted in a fixed manner onthe inner end of shaft 29, is a pawl 5l,which is adapted to engage the teeth of ratchet-wheel 3T, when the shaftis in position with ball 33 in the groove 3l. Seated in the hub of thispawl is a pin with an eye to which a spring 43 is fastened and the otherend of the spring is attached to a pin te on the lever socket.v rIhetension of spring 43 rocks the shaft 29 in a direction to bring thepawls thereon into engagement the particular ratchet wheel that is thenin the plane of movement of one of the ratchets when the hand` lever islowered. rllhe throw of rock shaft 29 is limited in opposition tothespring 43 by the Contact of an arm 45 from the hub of pawl 5l. with theend of a bolt Lt6 'passing through a'shaft 47, supported in any suitV-able manner. The bolt is adjustable to regulate the upward movement ofarm l5 withoutthe necessity for careful machining of said parts. Theshaft l? also acts as a stop for a lug 50 on the lever' huh which limitsthe upward movement of the hand lever under the action of the weight 2S.

The pawls, as shown best in Fig. 3, have removable contacting plates cof tempered steel to take the wear, and. which are removableforsharpening and replacement. They fit in a suitable notch in a casthub and are retained by a dowel pin d and bolt 7J.

The operation of my invention is as follows: The table 12 is adjusted tothe desired height tov suit the particular work to be done, by turningthe hand crank 18, wherebyT the ram 9 is correspondingly adjusted thehand wheel 24:. Shaft 23 is easily rotated bythe hand wheel to raise orloiver the ram-when the lever 26 is up as shown in the. drawings,because both of the pawls are then disengaged, If such a ram pressure ascan be produced by rotating the hand wheel will suffice, that meansalone may be used, but if a greater pressure is required the shaft 29 ispushed in until the pawl 36 is over ratchet wheel 25. n that adjustmentof shaft the ball 33 will be in groove 39, which will hold the shaftunder normal conditions of use. The pawl 5l will then be so far to oneside of ratchet wheel 37 that it will miss it when operated by the handlever 2W. Then hand lever 26n is manually lowered and its power appliedthrough pawl 36 to shaft 23 through ratchet wheel 23.

i'Vhen a still greater pressure is Vdesired the shaft 29 is'movedlongitudinally to the position shownin the drawings, which removes pawl.36 from position to influence ratchet wheel 25, but brings pawl 5l intoaction with ratchet wheel 37Y when the fever 26" is lowered Then thepower applied to wheel 3T is transmitted through the multiplying gears33, tif?. to shaft 39and thence through multiplying gears il and 42 toshaft- 23. j

While 'l have described my invention .with more. or less minuteness ofdetail, l do not desire to be confined to thospeeific mechanism shown`unduly, or any more than is required by the appended claims.

l claim:

l'. in an arbor press, a' frame having aV ciprocating ram in said head,said ram havinggear teeth', a vertically adjustable table under the ram,a shaft mounted in the head having gear teeth engaging' with those ofthe ram, a hand lever, a spur gear wheel rotatable iinilependcntly ofthe shaft, a second spur gear wheel mounted on the shaft in a fixedmanner, selecting means for transmitting power Afrom the lever to saidfirst gear wheel and power multiplying means for transmitting power fromthe firstl gear wheel to the second one. A

2. In an arbor press, a frame having a forwardly overhanginghead` avertically reciprocating` rain in said head, said ram having gear teeth,a vertically adjustable table supported under the ram by the frame, ashaft mounted in the head having gear teeth engaging with those of theram, ahand wheel on one end of the shaft, a hand lever pivotedV on theshaft, a spur gear wheel looseljv mounted on the shaft. a second spur.gear wheel mounted on the shaft in a fixed manner, selective means fortransmitting power from the lever to said first gear wheel and powermultiplying means fo'r transmitting power from the vfirst gear wheel tothe second one. i Y

an arbor press, a framehaving a forwardly roverhanging head, aAvertically recriprocating ram in said head, said ram having gea-r teeth.a vertically adjustable table supported under the ram by the frame,

a shaft. mounted in the head having gear teeth engaging with those ofthe ram, a hand lever pivoted on the shaft, a ratchet `wheel fixedl onthe shaft, a second ratchet wheel loosely mounted on the shaft, a spurgear wheel secured to and rotating with the second ratchet wheel, pawlmeans for transmitting )ower selectively vfrom the lever to either ofsaid ratchet wheels, and power multiplying` means for ytransmittingpower to the shaft from the spur gear wheel secured to the secondratchet wheel.

l. ln an arbor press, a frame having a forwardly overhanging head, avertically reciprocatingram in said head said ram having gear teeth, avertically adjustable table under the ram, a shaft mounted in the headhaving gear teeth engaging with those of the ram, a hand lever, a spurgear wheel rotatable independently of the shaft, a second spur gearwheel mounted on the shaft in a fixed manner, means for transmittingpower from the lever to said first gear wheel., power multiplying meansfor transmitting power from the lirst gear wheel to the second one, and`means for transmitting power from the lever to the shaft independentlyof said power multiplying means.

ln an arbor press, a frame having a for 'ardly overhanging head, avertically reciprocating ram in said head, said ram having gear teeth, avertically adjustable table supported under the ram by the frame, a`

shaft mounted in the head having gear teeth engaging with those of theram, a hand wheel on one end of the shaft, a hand lever pivoted on theshaft, a spur gear wheel .loosely mounted on the shaft, a second spurgear wheel mounted on the shaft in a fixed manner, means fortransmitting power 'from the lever to said first gear wheel, powermultiplying means for transmittin power from the first gear wheel to thesecond one, and means for transmitting power from the lever to theshaftindependently of said power multiplying means.

G. ln an arbor press, a frame having a forwardly overhanging head. avertically reciprocating ram supported by said head said ram having gearteeth, a vertically adjustable table under the ram, a shaft mounted inthe head having gear teeth engaging with those of the ram, a hand lever,aspur gear wheel rotatable independently of the shaft, a second spurgear wheel mounted on Vthe shaft in a fixed manner, means fortransmitting power from the lever to said first gear "wheel, powermultiplying means for transmitting power from the first gear wheel tothe second one com arising a second shaft, a fixed gear wheel thereonlarger than and driven from the first gear wheel and a second gear wheelfixed on the second shaft smaller than and drivingly engaging the gearwheel fixed on the first shaft, and

means for transmitting power from the l ve to the shaft independently ofsaid power multiplying means.

7. ln an arbor press, a frame having a forwardly overhanging head, avertiea lly reciprocating ram mounted in said head said ram having gearteeth, a vertically adjustable table supported under the ram hy theframe, a shaft mounted in the head having gear teeth engaging with thoseof the ram., a hand lever pivoted on the shaft, a ratchet wheel lined onthe shaft, a second ratchet wheel loosely mounted on the shaft, a spurgear wheel secured to and rotating with the second ratchet wheel, pawlmeans for transmitting power selectively from the lever to either ofsaid ratchet wheels, and power multiplying means for transmitting powerto the shaft from the spur gear wheel secured to the second ratchetwheel comprising a second shaft, a fixed gea-r wheel thereon larger thanand driven from the first gear wheel and a second gear wheel fixed onthe second shaft smaller than and drivingly engaging the gear wheelfixed on the `first shaft.

8. ln an arbor press, a frame, a vertically reciprocating ram supportedby the frame, a pivoted lever, a .plurality of means for reciprocatingthe ram from the lever at different powers, and means for actuating aselective one of said plurality of means.

9. In an arbor press, a frame, a vertically reciprocating ram supportedby the frame. a pivoted lever, a plurality of means 'for reciprocatingthe rain from the lever at different powers each comprising a ratchetwheel, and pawl means on the lever adjustable to engage a selective oneof said ratchet wheels one at a time.

l0. ln an arborl press, a frame, a vertically reciprocating ramsupported by the frame, a pivoted lever, a plurality of means forreciprocating the ram from the lever at different powers each comprisinga ratchet wheel, a longitudinally adjustable shaft mounted on the lever,and pawl means carried by the shaft to singly engage a selective one ofsaid ratchet wheels.

11. In an arbor press, a. frame, a vertically reciprocating ramsupported by the frame, a pivoted lever, a plurality of means forreciprocating the ram from the lever at different powers each comprisinga ratchet wheel, a longitudinally adjustable shaft mounted in the lever,resilient stop means to hold a given adjustment of the sha-ft, and pawlmeans carried by the shaft to singly engage a selective one of saidratchet wheels.

l2. In an arbor press, a frame, a vertically reciprocating ram supportedby the frame, a pivoted lever, a plurality of means for reciprocatingthe ram from the lever at different powers each comprising a ratchetwheel, a shaft mounted on the lever, pawl means carried lby the shaft toengage a selective Aone of said ratchet wheels, a stop remote from thepawl and lever, an extension from the paWl to contact the stop and rockthe shaft todisengage the pawl from its ratchet wheel,

Vand resilient means to return the sha-ft to one of saidl ratchetwheels, a` stop remote from the paWl and lever, an extension `from thepawl to contact the stop and rock the shaft to disengage the pavvl fromits ratchet wheel, said stop being adjustable toward and from the pawlextension, and resilient means to return the shaft to position ofengagement of its pawl with a ratchet wheel when the lever is moved torelease the extension from the stop.

14( In an arbor press, a frame, a reciprocating ram supportedby theframe, a pivoted lever, a power multiplying gear means drivinglyconnected with the ram, and selective means for transmitting power fromthe lever to said gear means. Y

15. In an arbor press, a. frame, a reciprocating ram supported by theiframe and having gear teeth, power, multiplying gear means engagingWith the teeth of the ram, a lever, and selective means for transmittingpower from the lever to said power multiplying gear means.

16. In an arbor press, a frame, a reciprocating ram supported by theframe, a lever, gear means `for actuating the ram at differentVV powers,and selective means :tor transmitting power from the lever to one ofsaid ram-actuating means.

17. In an arbor press, a frame, a reciprocating ram supported by theframe and having gear teeth, a lever, a shaft having gear teeth engagingwith those of the ram, power multiplying ear means drivingly connectedwith the shalt, and selective means for drivingly connecting the leverindependently of said power multiplying gear means or through saidvpower multiplying gear means.

Signed at Columbus, Indiana, this the 21 day of February, 1921.

JOSEPH sTALnv.v

